IP Library › Granted Patent US 12,377,827
Granted Patent B2
US 12,377,827 · App. 18/639,874 · Granted Aug 5, 2025

Brake system

Inventors: Heinz Leiber (Oberriexingen, DE); Anton Van Zanten (Ditzingen, DE); Thomas Leiber (Rogoznica, HR)
Assignee: IPGATE AG
B60T8/4036B60T7/042B60T8/1755B60T8/176B60T8/17616B60T8/268B60T8/4022B60T8/4081B60T8/885B60T13/145B60T13/16B60T13/165B60T13/58B60T13/586B60T13/662B60T13/686B60T13/745B60T17/221B60T2220/04B60T2260/08B60T2270/10B60T2270/30B60T2270/306B60T2270/402B60T2270/403B60T2270/404B60T2270/413B60T2270/604B60T2270/82B60T2270/88
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 12,377,827
App. No.
18/639,874
Granted
Aug 5, 2025
Kind
B2
Abstract

A brake system may include an actuating device, in particular a brake pedal; a first piston-cylinder unit having two pistons subjecting the brake circuits to a pressure medium via a valve device, wherein one of the pistons can be actuated by the actuation device; a second piston-cylinder unit having an electric motor drive, a transmission at least one piston to supply at least one of the brake circuits with a pressure medium via a valve device; and a motor pump unit with a valve device to supply the brake circuits with a pressure medium. The brake system may also include a hydraulic travel simulator with a pressure or working chamber which is connected to the first piston-cylinder unit.

Claims (16)

1. A system comprising:

a two-box brake system,

a vehicle having axles, wheel brakes being assigned to at least one of the axles, and

an actuating device in the form of a brake pedal for controlling brake pressure supplied to the wheel brakes;

wherein the two-box brake system comprises an electric brake booster as a part of a first box and an electronic stability control (ESP) unit as a part of a second box, the electric brake booster being connected to the ESP unit via two hydraulic lines, the first hydraulic line being part of a first hydraulic brake circuit and the second hydraulic line being part of a second hydraulic brake circuit, wherein both the electric brake booster and the ESP unit are able to supply brake pressure to the wheel brakes via the brake circuits,

wherein the wheel brakes are connected to the brake circuits,

wherein each of the wheel brakes comprises a brake pad, a brake disc, and a rollback seal which is deformed when brake pressure is built up in the respective wheel brake to press the brake pad against the brake disk,

wherein the actuating device is connected to the brake pads of the wheel brakes via the hydraulic brake circuits,

wherein each rollback seal is dimensioned such that a deformation energy stored therein is sufficiently high to lift the brake pad from the brake disc for clearance as soon as there is no pressure supplied to the respective wheel brake by the actuating device and/or the electric booster and/or the ESP unit any more,

wherein the clearance between the brake pad and the brake disc allows a decoupling of the actuating device from the respective wheel brake, wherein in case pressure is supplied to the respective wheel brake, via a piston of the electric brake booster, both the electric brake booster and the ESP unit are able to overcome the clearance, wherein when pressure is supplied to the respective wheel brake via the piston of the electric brake booster, the pressure is supplied using position control of the piston of the electric brake booster to adjust the pressure supplied via the piston of the electric brake booster.

2. The system according to claim 1 , wherein the electric brake booster comprises:

a first piston-cylinder unit for supplying pressure medium to the ESP unit via a valve that is open when no current is supplied to the valve;

a second piston-cylinder unit with an electromotive drive, a transmission, and at least one pressure supply piston for supplying pressure medium to the first brake circuit and the second brake circuit; and

a piston travel simulator connected to the first piston-cylinder unit.

3. The system according to claim 2 , wherein an electronically commutated (EC) motor of the electromotive drive of the second piston-cylinder unit is redundantly controlled via 2×3-phase control via a redundant connection.

4. The system according to claim 3 , wherein the electric brake booster comprises a first ECU and a second at least partially redundant ECU, wherein the first ECU is connected to a first power supply and the second ECU is connected to a second power supply to provide fail-safe control of the EC motor.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 22, 2024
From: LEIBER, THOMAS; LEIBER, HEINZ; VAN ZANTEN, ANTON
To: IPGATE AG
Reel/Frame 067175/0450 →
Priority Claims (1)
DE 102017113563.4 · Jun 20, 2017 · national
Continuity (4)
Continuation 18411757 · Jan 12, 2024
Continuation 17883700 · Aug 9, 2022
Continuation 16625228
Related Publication 20240262324A1 · Aug 8, 2024
References Cited (269)
US 4503677A · Crumb et al. · 1985 [cited by applicant]
US 4813448A · Leiber · 1989 [cited by applicant]
US 5051861A · Purkayastha et al. · 1991 [cited by applicant]
US 5054861A · Resch · 1991 [cited by applicant]
US 5076593A · Sullivan · 1991 [cited by examiner]
US 5826681A · Kubo et al. · 1998 [cited by applicant]
US 5826954A · Schmitt et al. · 1998 [cited by applicant]
US 5941608A · Campau et al. · 1999 [cited by applicant]
US 6044936A · Matsumoto et al. · 2000 [cited by applicant]
US 6244393B1 · Weidenweber et al. · 2001 [cited by applicant]
US 6256570B1 · Weiberle et al. · 2001 [cited by applicant]
US 8708429B2 · Maury et al. · 2014 [cited by applicant]
US 8926027B2 · Shimada · 2015 [cited by applicant]
US 9878697B2 · Leiber et al. · 2018 [cited by applicant]
US 9914440B2 · Bauer et al. · 2018 [cited by applicant]
US 10059321B2 · van Zanten et al. · 2018 [cited by applicant]
US 10688979B2 · Leiber et al. · 2020 [cited by applicant]
US 11458943B2 · Leiber et al. · 2022 [cited by applicant]
US 11472388B2 · Leiber et al. · 2022 [cited by applicant]
US 11618424B2 · Nakagawa · 2023 [cited by applicant]
US 20030201669A1 · Yokoyama et al. · 2003 [cited by applicant]
US 20040215385A1 · Aizawa et al. · 2004 [cited by applicant]
US 20080150354A1 · Ohlig et al. · 2008 [cited by applicant]
US 20080169702A1 · Ohnishi · 2008 [cited by applicant]
US 20080246333A1 · Joyce · 2008 [cited by applicant]
US 20090226298A1 · Kajiyama et al. · 2009 [cited by applicant]
US 20100113215A1 · Jager et al. · 2010 [cited by applicant]
US 20100226793A1 · Beck · 2010 [cited by applicant]
US 20110254362A1 · Maury et al. · 2011 [cited by applicant]
US 20110285200A1 · Hatano et al. · 2011 [cited by applicant]
US 20120112525A1 · Shimada · 2012 [cited by applicant]
US 20130026818A1 · Schmidt et al. · 2013 [cited by applicant]
US 20130184953A1 · Morishita · 2013 [cited by examiner]
US 20140028084A1 · Biller et al. · 2014 [cited by applicant]
US 20140152085A1 · Biller et al. · 2014 [cited by applicant]
US 20140203626A1 · Biller et al. · 2014 [cited by applicant]
US 20140284151A1 · Yokoyama et al. · 2014 [cited by applicant]
US 20140346852A1 · Thrasher · 2014 [cited by applicant]
US 20150008727A1 · Kidera et al. · 2015 [cited by applicant]
US 20150020520A1 · Feigel et al. · 2015 [cited by applicant]
US 20150028667A1 · Leiber et al. · 2015 [cited by applicant]
US 20150115701A1 · Koo · 2015 [cited by applicant]
US 20150175146A1 · Quirant et al. · 2015 [cited by applicant]
US 20150203086A1 · Miyazaki · 2015 [cited by applicant]
US 20150283987A1 · Bareiss · 2015 [cited by applicant]
US 20160009263A1 · Feigel et al. · 2016 [cited by applicant]
US 20160031326A1 · Ueno · 2016 [cited by examiner]
US 20160082937A1 · Nakaoka et al. · 2016 [cited by applicant]
US 20160082938A1 · Vollert et al. · 2016 [cited by applicant]
US 20160121860A1 · Brown · 2016 [cited by applicant]
US 20160229383A1 · Leiber et al. · 2016 [cited by applicant]
US 20160278245A1 · Koga et al. · 2016 [cited by applicant]
US 20160311422A1 · van Zanten et al. · 2016 [cited by applicant]
US 20160339885A1 · Linhoff et al. · 2016 [cited by applicant]
US 20160355169A1 · Ohlig et al. · 2016 [cited by applicant]
US 20160375886A1 · Jung · 2016 [cited by examiner]
US 20170001612A1 · Bauer et al. · 2017 [cited by applicant]
US 20170106843A1 · Jeong · 2017 [cited by applicant]
US 20170114849A1 · Gadke et al. · 2017 [cited by applicant]
US 20170129468A1 · Besier et al. · 2017 [cited by applicant]
US 20170144643A1 · Kim et al. · 2017 [cited by applicant]
US 20170158179A1 · Choi et al. · 2017 [cited by applicant]
US 20170158184A1 · Choi et al. · 2017 [cited by applicant]
US 20170182992A1 · Matsunaga et al. · 2017 [cited by applicant]
US 20170183009A1 · Isono · 2017 [cited by examiner]
US 20170210363A1 · Klinger · 2017 [cited by examiner]
US 20170210372A1 · Feigel · 2017 [cited by applicant]
US 20170264229A1 · Murata · 2017 [cited by examiner]
US 20170282877A1 · Besier et al. · 2017 [cited by applicant]
US 20170282879A1 · Matsunaga · 2017 [cited by applicant]
US 20170282881A1 · Nakamura · 2017 [cited by applicant]
US 20170327098A1 · Leiber et al. · 2017 [cited by applicant]
US 20170341632A1 · Han et al. · 2017 [cited by applicant]
US 20170361825A1 · Drumm et al. · 2017 [cited by applicant]
US 20180006505A1 · Nakano et al. · 2018 [cited by applicant]
US 20180079313A1 · Foitzik et al. · 2018 [cited by applicant]
US 20180093576A1 · Ayala et al. · 2018 [cited by applicant]
US 20180118183A1 · Spieker · 2018 [cited by applicant]
US 20190016321A1 · Dinkel · 2019 [cited by applicant]
US 20190039583A1 · Besier et al. · 2019 [cited by applicant]
US 20190202425A1 · Feigel et al. · 2019 [cited by applicant]
US 20190241167A1 · Peichl et al. · 2019 [cited by applicant]
US 20190308596A1 · Besier et al. · 2019 [cited by applicant]
US 20190344769A1 · Zimmermann · 2019 [cited by examiner]
US 20200039490A1 · Kobayashi et al. · 2020 [cited by applicant]
US 20200139948A1 · Leiber et al. · 2020 [cited by applicant]
US 20200290581A1 · Kawakami et al. · 2020 [cited by applicant]
US 20200307536A1 · Biller · 2020 [cited by applicant]
US 20200317174A1 · Terasaka et al. · 2020 [cited by applicant]
US 20210053546A1 · Plewnia · 2021 [cited by applicant]
US 20210114569A1 · Yamamoto · 2021 [cited by applicant]
US 20210122348A1 · Leiber · 2021 [cited by applicant]
US 20220126802A1 · Leiber et al. · 2022 [cited by applicant]
US 20220135010A1 · Leiber et al. · 2022 [cited by applicant]
CN 86107094A · 1987 [cited by applicant]
CN 1374218A · 2002 [cited by applicant]
CN 101896382A · 2010 [cited by applicant]
CN 102556031A · 2012 [cited by applicant]
CN 103010199A · 2013 [cited by applicant]
CN 103264639A · 2013 [cited by applicant]
CN 104039615A · 2014 [cited by applicant]
CN 104105626A · 2014 [cited by applicant]
CN 104640752A · 2015 [cited by applicant]
CN 105026232A · 2015 [cited by applicant]
CN 105584472A · 2016 [cited by applicant]
CN 105799670A · 2016 [cited by applicant]
CN 105813911A · 2016 [cited by applicant]
CN 106458179A · 2017 [cited by applicant]
CN 106794829A · 2017 [cited by applicant]
DE 2540193A1 · 1977 [cited by applicant]
DE 3236535A1 · 1984 [cited by applicant]
DE 3307337C2 · 1991 [cited by applicant]
DE 19541601A1 · 1997 [cited by applicant]
DE 102005017958A1 · 2006 [cited by applicant]
DE 102005018649A1 · 2006 [cited by applicant]
DE 102005055751A1 · 2006 [cited by applicant]
DE 19929414B4 · 2007 [cited by applicant]
DE 102007059374A1 · 2009 [cited by applicant]
DE 102009033499A1 · 2010 [cited by applicant]
DE 102010001532A1 · 2011 [cited by applicant]
DE 102010003081A1 · 2011 [cited by applicant]
DE 102010023865A1 · 2011 [cited by applicant]
DE 102010045617A1 · 2012 [cited by applicant]
DE 112009004636A5 · 2012 [cited by applicant]
DE 102012201535A1 · 2012 [cited by applicant]
DE 102012205860A1 · 2012 [cited by applicant]
DE 102012210809A1 · 2013 [cited by applicant]
DE 112011103274A5 · 2013 [cited by applicant]
DE 102012002791A1 · 2013 [cited by applicant]
DE 102013214212A1 · 2014 [cited by applicant]
DE 102013200465A1 · 2014 [cited by applicant]
DE 102014200071A1 · 2014 [cited by applicant]
DE 102014205645A1 · 2014 [cited by applicant]
DE 102014009127A1 · 2015 [cited by applicant]
DE 102015208148A1 · 2015 [cited by applicant]
DE 102014109628A1 · 2016 [cited by applicant]
DE 202015107079U1 · 2016 [cited by applicant]
DE 102014222753A1 · 2016 [cited by applicant]
DE 102014117726A1 · 2016 [cited by applicant]
DE 102014225958A1 · 2016 [cited by applicant]
DE 202015008975U1 · 2016 [cited by applicant]
DE 102015103859A1 · 2016 [cited by applicant]
DE 102015104246A1 · 2016 [cited by applicant]
DE 102016203111A1 · 2016 [cited by applicant]
DE 1020151060892A1 · 2016 [cited by applicant]
DE 102016217273A1 · 2017 [cited by applicant]
DE 102016224057A1 · 2017 [cited by applicant]
DE 102016224062A1 · 2017 [cited by applicant]
DE 102016105232A1 · 2017 [cited by applicant]
DE 102016112971A1 · 2018 [cited by applicant]
DE 102016211982A1 · 2018 [cited by applicant]
DE 202019101596U1 · 2020 [cited by applicant]
EP 0095403A1 · 1983 [cited by applicant]
EP 0105219B2 · 1986 [cited by applicant]
EP 1103436A2 · 2001 [cited by applicant]
EP 1371535A2 · 2003 [cited by applicant]
EP 1533537A2 · 2005 [cited by applicant]
EP 1964739A2 · 2008 [cited by applicant]
EP 2225133B1 · 2010 [cited by applicant]
EP 2409885A1 · 2012 [cited by applicant]
EP 2602163A1 · 2013 [cited by applicant]
EP 2719593A1 · 2014 [cited by applicant]
EP 2744691B1 · 2015 [cited by applicant]
EP 2995516A1 · 2016 [cited by applicant]
EP 2998173A1 · 2016 [cited by applicant]
GB 2443921A · 2008 [cited by applicant]
GB 2540193A · 2017 [cited by applicant]
JP H0656022A · 1994 [cited by applicant]
JP H09072361A · 1997 [cited by applicant]
JP H10325432A · 1998 [cited by applicant]
JP 2000016263A · 2000 [cited by applicant]
JP 2000025592A · 2000 [cited by applicant]
JP 2001206209A · 2001 [cited by applicant]
JP 2006161899A · 2006 [cited by applicant]
JP 2006275120A · 2006 [cited by applicant]
JP 2009161083A · 2009 [cited by applicant]
JP 2011219079A · 2011 [cited by applicant]
JP 2012101591A · 2012 [cited by applicant]
JP 2012126170A · 2012 [cited by applicant]
JP 2015071382A · 2015 [cited by applicant]
JP 2015113034A · 2015 [cited by applicant]
JP 2016112946A · 2016 [cited by applicant]
JP 2016147614A · 2016 [cited by applicant]
KR 20170012348A · 2017 [cited by applicant]
WO 2008096224A1 · 2008 [cited by applicant]
WO 2009065709A1 · 2009 [cited by applicant]
WO 2010088920A1 · 2010 [cited by applicant]
WO 2010091130A2 · 2010 [cited by applicant]
WO 2010092083A1 · 2010 [cited by applicant]
WO 2010092939A1 · 2010 [cited by applicant]
WO 2011029812A1 · 2011 [cited by applicant]
WO 2011098178A1 · 2011 [cited by applicant]
WO 2012019802A1 · 2012 [cited by applicant]
WO 2012028568A1 · 2012 [cited by applicant]
WO 2012034661A1 · 2012 [cited by applicant]
WO 2012055616A1 · 2012 [cited by applicant]
WO 2012143175A2 · 2012 [cited by applicant]
WO 2012143311A1 · 2012 [cited by applicant]
WO 2013002168A1 · 2013 [cited by applicant]
WO 2013023953A1 · 2013 [cited by applicant]
WO 2013072198A2 · 2013 [cited by applicant]
WO 2014135454A1 · 2014 [cited by applicant]
WO 2014154631A2 · 2014 [cited by applicant]
WO 2014157683A1 · 2014 [cited by applicant]
WO 2015078651A1 · 2015 [cited by applicant]
WO 2015096914A1 · 2015 [cited by applicant]
WO 2015106892A1 · 2015 [cited by applicant]
WO 2015173134A1 · 2015 [cited by applicant]
WO 2016000865A1 · 2016 [cited by applicant]
WO 2016005372A1 · 2016 [cited by applicant]
WO 2016012331A1 · 2016 [cited by applicant]
WO 2016023994A1 · 2016 [cited by applicant]
WO 2016087505A1 · 2016 [cited by applicant]
WO 2016096533A1 · 2016 [cited by applicant]
WO 2016120292A1 · 2016 [cited by applicant]
WO 2016128172A1 · 2016 [cited by applicant]
WO 2016146222A2 · 2016 [cited by applicant]
WO 2016146692A1 · 2016 [cited by applicant]
WO 2016150745A1 · 2016 [cited by applicant]
WO 2017022545A1 · 2017 [cited by applicant]
WO 2017047312A1 · 2017 [cited by applicant]
WO 2017135029A1 · 2017 [cited by applicant]
WO 2017162593A1 · 2017 [cited by applicant]
WO 2018073039A1 · 2018 [cited by applicant]
WO 2018130393A1 · 2018 [cited by applicant]
WO 2019002475A1 · 2019 [cited by applicant]
WO 2019214833A1 · 2019 [cited by applicant]
Int'l Search Report and Written Opinion issued Mar. 16, 2018 in Int'l Application No. PCT/EP2017/071738, translation of ISR only. [cited by applicant]
Int'l Search Report and Written Opinion issued Oct. 30, 2018 in Int'l Application No. PCT/EP2018/061995, translation of ISR only. [cited by applicant]
Int'l Search Report and Written Opinion issued Nov. 30, 2018 in Int'l. No. PCT/EP2018/066436, translation of ISR only. [cited by applicant]
Int'l Search Report and Written Opinion issued Aug. 14, 2019 in Int'l Application No. PCT/EP2019/061371. [cited by applicant]
Int'l Search Report and Written Opinion issued Nov. 28, 2018 in Int'l Application No. PCT/EP2018/072363, ISR Translation Only. [cited by applicant]
Int'l Search Report and Written Opinion issued Aug. 13, 2019 in Int'l Application No. PCT/EP2019/061365, Translation of ISR Only. [cited by applicant]
Office Action issued Aug. 6, 2021 in U.S. Appl. No. 16/625,228 by Leiber. [cited by applicant]
Office Action issued Sep. 14, 2021 in Chinese Application No. 201780093316.1. [cited by applicant]
Office Action issued Oct. 20, 2021 in Chinese Application No. 201880040827.1. [cited by applicant]
Office Action issued Nov. 3, 2021 in Chinese Application No. 201880040785.1. [cited by applicant]
Office Action issued Jan. 21, 2022 in British Application No. 2000691.2. [cited by applicant]
Office Action in U.S. Appl. No. 16/624,412 of Leiber et al., mailed Apr. 20, 2022. [cited by applicant]
Office Action in U.S. Appl. No. 16/624,505 of Leiber et al., mailed May 12, 2022. [cited by applicant]
Office Action issued May 30, 2022 in Japanese Application No. 2019-570915. [cited by applicant]
Office Action issued Aug. 24, 2022 in Great Britian Application No. GB2211088.6. [cited by applicant]
GB Search Report for the related U.K. Application No. 2211088.6 dated Aug. 23, 2022. [cited by applicant]
GB Combined Search and Examination Report for the related U.K. Application No. 2211088.6 dated Aug. 24, 2022. [cited by applicant]
GB Combined Search and Examination Report for the related U.K. Application No. 2212200.6 dated Nov. 2, 2022. [cited by applicant]
GB Combined Search and Examination Report for the related U.K. Application No. 2213645.1 dated Nov. 4, 2022. [cited by applicant]
Office Action in U.S. Appl. No. 16/624,505 of Leiber et al., mailed Nov. 25, 2022. [cited by applicant]
GB Combined Search and Examination Report for the related U.K. Application No. 2219297.5 dated Feb. 1, 2023. [cited by applicant]
Office Action issued Mar. 10, 2023 in U.S. Appl. No. 17/883,700. [cited by applicant]
Office Action issued Jun. 8, 2023 in U.S. Appl. No. 16/624,412. [cited by applicant]
Office Action issued Jun. 6, 2023 in Chinese Application No. 202080042804.1 with English Translation. [cited by applicant]
Office Action issued Jul. 8, 2023 in Chinese Application No. 201880040785.1 with English Translation. [cited by applicant]
Office Action issued Jul. 8, 2023 in Chinese Application No. 201880040785.1. [cited by applicant]
Office Action issued Jun. 6, 2023 in Chinese Application No. 202080042804.1. [cited by applicant]
Office Action issued Jul. 10, 2023 in DE Application No. 112018003140.3. [cited by applicant]
Office Action issued Jul. 10, 2023 in DE Application No. 112018003150.0. [cited by applicant]
Office Action issued Jul. 20, 2023 in U.S. Appl. No. 18/114,099. [cited by applicant]
Notice of Allowance issued Jan. 4, 2024 in U.S. Appl. No. 16/624,412. [cited by applicant]
Notice of Allowance issued Oct. 12, 2023 in U.S. Appl. No. 17/883,700. [cited by applicant]
Office Action issued Dec. 7, 2023 in U.S. Appl. No. 17/053,353. [cited by applicant]
Notice of Allowance issued Jan. 26, 2024 in U.S. Appl. No. 16/624,412. [cited by applicant]
Notice of Allowance issued Jan. 31, 2024 in U.S. Appl. No. 17/883,700. [cited by applicant]
Final Office Action issued Jun. 11, 2024 in U.S. Appl. No. 17/053,353. [cited by applicant]
Notice of Allowance issued on Oct. 1, 2024, in U.S. Appl. No. 18/411,757. [cited by applicant]
Notice of Allowance issued on Sep. 30, 2024, in U.S. Appl. No. 17/053,353. [cited by applicant]
Notice of Allowance issued Jul. 19, 2024 in U.S. Appl. No. 17/608,471. [cited by applicant]
Office Action issued Nov. 14, 2024, in U.S. Appl. No. 18/630,243, by Leiber et al. [cited by applicant]
Office Action issued May 26, 2025 in JP Application No. 2024074235. [cited by applicant]
Office Action issued May 26, 2025 in JP Application No. 2024074236. [cited by applicant]